Home / 10,710.19-14,786.54-6,990.67

Finding the Fourth Proportional to 10,710.19, 14,786.54 and 6,990.67

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Solution

The fourth proportional to 10,710.19, 14,786.54 and 6,990.67 is: 9,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,710.19 : 14,786.54 = 6,990.67 : x
  2. Step 2: Convert to fraction form
    10,710.19/14,786.54 = 6,990.67/x
  3. Step 3: Cross multiply
    10,710.19x = 14,786.54 × 6,990.67
  4. Step 4: Simplify right side
    10,710.19x = 103,367,821.58
  5. Step 5: Solve for x
    x = 103,367,821.58/10,710.19
  6. Step 6: Final answer
    x = 9,651.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.